Internal-combustion engine



y L. D. SLUSSER.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED IuNEzs, 1920.

Patented Oct. 26, 1920.

UNITED STATES LELAND nisnussumfor' OTTAWA, oHIo.

INTERNAL-COMBUSTION ENGINE. v

Specification of Letters Patent.'

` Patented out. 26,1920.

Application Atiled. June 28, 1920. Serial No. 392,291. i

To @ZZ whom it may concern:

Be it known that I, LELAND D. SLUssnR, a citizen of the United States, residing at Gttawa, in the county of Putnam and State of Chio, have invented a new and useful Internal-Combustion Engine, of which the following is a specication.

This invention relates to internal combustion engines and has for its object the provision of novel valve mechanism whereby intake and exhaust gases are conducted throughy a single tappet valve located in the head of the cylinder.l

With this and other objects in View which will appear as the descripion proceeds and as particularly pointed outrinV the appended claim, the invention vresides in the combination and arrangement of Vparts hereinafter pointed out, it being understood that slight changes may be made within the scope of what is claimed without departing from the spirit or sacrificing any of the advantages of the invention. ,y

In the drawing there is illustrated a view in elevation partly in section ofan engine constructed in accordance with the present invention.

Referring to the drawing 1 designates the crank case and 2 the cylinder of an internal combustion engine the'same being of ordinaryv and well known construction. A crankshaft 3,'connecting rod 4 and piston 5 are also of the usual design.

Located to one side of the crank case is an auxiliary casing 6 which houses the valve operating mechanism. This mechanism comprises a cam shaft 7 having a crank 8, on which is mounted a connecting Y rod 9. A 'cam 10 is secured to the shaft 7 and operates a roller 11 to lift a push Y rod 12.

The head 13 of the cylinder 2 is pro-A vided with a wall 14 having a valve seat Y 1,5 formed therein and a tapnetl valve 16 is urged to seat at 15 under the action of2 a spring 17. A lever 18 fulcrumed at 19A is actuated by the push rod 12 to open the valve 16. Y

A piston valve casing '20 is secured to the cylinder 2 and is connected to the casing 6 bv an expansion sleeve 21. The bore 22 of the casing 20 is open at both ends and is fitted with a piston 23. A passage 24 is formed in the piston 23 and is adapted to establish communication between the cylinder 2 and a source of yfuel supply through a port 25 in the casing 20 and a port 26 in the cylinder head 13. Reciprocation ofthe piston 23 is effected by the` crank 8 through the connecting rod 9.

Timing gears 27 and 28 of a two to one ratio are mounted on the shafts 3 and 7 respectively and operatev the valves in timed relation with the reciprocation of the piston 5.

The operation of the engine is asfollows, assuming that lthe engine has just finished the exhaust stroke with the parts in the position illustrated in the drawing and moving inthe direction indicated byl the arrows. The piston valve 23 moving upwardly opens the port 25 leading from the carbureter (not shown) to the cylinder 2, through the passage 24, the piston 5 now 1 on` its downward or suction stroke draws in a charge of gas, when the piston reaches the bottom of its stroke the cam 10 leaves the roller 11 and the valve 16 closes for Y the compression stroke of the piston, re-` maining closed until the power stroke is complete. During this movement ofthe rotation and the cam 10 under-rides the roller 11 to open the valve 16, the piston valve 23 having also moved to uncover thek port 26 and permit the exhaustV gases to escape to the atmosphere throughthe open end of the bore 22.

use of but one valve through which intake and exhaust takes place, the same may be of maximum size, this being especially advantageous during the exhaust stroke of the piston as will be readily understood. Further, intake of fresh gas ,occurringr as it does through the same valve through which the burned gases escape, tendsV to keep they engine cool, also to `keep the valve seat clean and free of carbon deposits.

Exhaust of the engine is also .facilitated by the vproximity of the cylinder to the large opening through the Vend of Y the bore'22.

Vpiston 5 the shaft 7, has made a partial Having thus described the invention what is claimed is Y An internal combustion engine` ing a cylinder having a combined intake i and exhaust passage; a first valve controlling the passage; a source of fuel supply;

a second valve consisting of a cylinder, and

a piston mounted therein7 the cylinder hav- 5 ing communication with the passage, the

piston having a passageV whereby communication between the source of fuel supply `and the Vintake passage is established and adapted to move to a position to permit 10 exhaust through the cylinder of the second valve; and means for operatingvthe valves in timed relation. l

In testimony that I claim the foregoing as my own7 I have hereto affixed my signature in the presence of two witnesses.

. LELAND D. SLUSSER.

Witnesses:

E. R. EASTMAN, H. P. EASTMAN. 

